Ventilator canopy



1,632,381 June 14, 1927. R, E. PECK VENTILATOR CANOPY -ledi Sept. 29,1924 4 Sheets-Sheet l 1,632,381 June 14, 1927 R, E, PECK VENTILATORCANOPY Filed Sept. 29. 1924 4 Sheets-Sheet 2 fiw 5 1,632,381 June 149 R'E PECK VENTILATOR CANOPY Filed Sept. 29, 1924 4 Sheets-Sheet 3 43anvemto'a wry/a D l,632,381 311W 1927' R. E. PEcK VENTILATOR CANOPYFiled Sent. 29, 1924 4 Sheets-Sheet 4 attenuat Patented June 14, 1927.

UNITED STATES PATENT OFFICE.

ROBERT E. PIECE, OF CINCINNATI, OHIO, ASSIGNOR TO THE PECK, HANNAFORD &PEGK COMPANY, OF CINCINNATI, OHIO, A CORPORATION OF OHIO.

VENTILAT OR CANOPY.

Application filed September 29, 1924. Serial No. 740,537.

This invention relates to improvements in canopies adapted to be placedover machines or like devices for collecting, drawing off or removingvapors, heated or moisture laden air, generated duringhthe operation ofthe machine, to improve t e sanitary and atmospheric condition of theroom in which the machine is installed.

The device herein is particularly applicable to laundry machines and isespecially designed for use in conjunction with a machine of the mangletype.

Some machines of this class are of very large size, occupy considerablefloor space and are frequently installed in basement or low ceilingrooms, so that the headroom above the machine is very limited, makingthe problem of ventilation difficult. These machines usually have anumber of rolls generating considerable heat, and when the work is fedthrough the machine a. large amount of steam is set off, which ifpermitted to permeate the room soon makes the same unfit for theworkman.

The present invention accommodates for these conditions and provides acanopy for the machine to collect and draw off all of the vaporsescaping from the machine, as well as ventilating the room, and of acharacter easily manipulated for accessibility to the machine wheneverrequired without necessitating the shutting down of the machine or theventilator machinery forming a part of the canopy organization.

It is, therefore, a particular object of this invention to provide meanswhereby this heat moisture or steam may be collected and removed to apoint outside the room or building this object being herein accomplishedby providing a canopy or hoodadapted to be disposed over the ironingrolls of the machine in such a manner as to trap and remove moistureladened air or steam rising therefrom.

Another object of the invention is to provide a sectional suction drumof the above nature, one part of which is adjustable upon the other toallow the lower or machine engaging section to be raised for anypurpose, such as to permit repair or adjustment of those parts of themachine ordinarilyenclosed by the hood.

Another object of the invention is to provide means whereby the lowersection may be raised evenly with little efi'ort and, se-

curely held in intermediate or raised position.

Another object of the invention is to provide a suction device and motorfor operating the same mounted upon the upper stationary section of theapparatus, the suction device providing means whereby the air iswithdrawn from the lower section and delivered to some point outside thebuilding or room.

A feature of the invention resides in'the provision of transparent sidesfor the hood whereby the operation of the machinery which may be coveredthereby may be observed.

Another feature of the invention resides in the manner of telescopicallyengaging the two sections of the apparatus to obtain limited downwardmovement of the hood section as well as to guide that section withreference to the upper section.

Another feature of the invention resides in the manner of arranging thehood hoisting apparatus to provide means operable from one side forraising the hood with ease and holding the same at any adjustedposition.

Another feature of the invention resides in the hollow construction ofthe walls of the hood or machine enclosing member, to provide a dead airinsulating space adapted to prevent radiation, and condensation on theinterior of the hood.

Other features of the invention relate to the construction of thestationary member the construction of the hood, and the con struction ofcombined corner and track sections as means for connecting adjacentsides of the hood.

Other objects, features, and certain advantages will be disclosed in thedescription of the drawings, in which: 7

Figure 1 is a top plan,-parts of the upper or stationary section beingbroken away to show the arrangement of the hoisting cables at thecorners.

Figure 2 is a vertical transverse section on line 22, 'of Fig. 1, themovable or canopy section being in its lowered osition.

Figure 3 is a detail plan sectlon on line 3--3, of Fig. 2, illustratingthe manner of attaching the window panes to the lower section. r

Figure 4c is a fragmentary detail plan more fully illustrating thearrangement of the hoisting cables at the corners, as well as theconstruction of the vertical gu1des and roller mountings associatedtherewith.

as well as the arrangement of thehoisting apparatus and suctionapparatus thereon, the lower or hood section being omitted.

Figure 8 is a fragmentaryside elevation broken away to show a portionand arrangement of the hoisting apparatus.

F igure 9 is an elevation showing the device applied to a conventionalmachine.

The device comprises two telescopically engaged'drum-like sections, ascasings, the

vupper adapted to be stationarily attached,

for example suspended from the ceiling, and the lower connected to andsurrounding the upper and adapted to be translated thereon,

its movement in one direction, downwardly, being limited by cooperatinghorizontally extending flanges at the lowermost margin of the uppersection, and uppermost margin of the lower section, which flanges aresealingly engaged when the lower casing'is in operative or suctionposition relative to the machine. The lower or hood section ispreferably designed to rest upon the framework of the machine and to liethereover and enclose the entire area in. which noxious gases or heatedor moisture ladened air are being generated. The lower edge of the hoodmay be shaped to conform to the configuration of the frame, or otherimmovable part of the machine, the object being to prevent escape oftroublesome products into the room or building.

The stationary section is of rectangular trough-like configuration ofrelativelysmall vertical height, and is referably constructed of sheetmetal. Eac side is formed by bending a sheet to provide a vertical wall2, a relatively long two-ply outwardly extending horizontal marginalabutment flange 3, formed by bending the plate upon itself, an inwardlyextending relatively short flange 4, and an upper inwardly extendingrelatively short flange 5.

The sides thus formed are secured together at the'corners by angle irons6. A suitable bottom is formed of a lurality of sheets each havingmarginal hook-like flanges 7, formed 'by re-bending, which are engagedwith the flange 4, or its equivalent of the side walls 2, the partsbeing securely pressed together. Hollow covers are provided forremovably closing the upper side of the casing, the same being providedwith marginal flanges engaging the flanges 5.

The casing thus formed is partititioned at each side of its centraltransverse axis ed in the bottom of the top section; a lateralcompartment 20 having a delivery opening 22in the top of the housingadapted for connection with the conduit, not shown, leading to theoutside point; and a second ,lateral chamber 25 for housing a portion of.a hoisting apparatus.

The partition 17 has an opening therethrough, in which is seated andsecured a short conical pipe or conduit 23, establishing communicatingbetween the chambers .18, 20, and having its. small end projectingwithin the chamber 20 and opposingly operatively related to acorresponding opening in a draft fan 24, mounted upon the end of a motorshaft 26 extending through the side of the housing, the motor 27 beingmounted upon a boxing support adjacent the housing. The arrows roughlyindicate the course of the products when the fan is operated.

The structure as a whole is reinforced and partitioned by irons and-bythe I-beams 13, each of these beams being formed in this instance byplacing two sheet metal channels together and suitably riveting orotherwise fastening the same, each I-beam so formed having rightangularly bent terminal flanges connected with the vertical sides orpartition walls.

The shapecf the housing 14 is immaterial, if proper enclosure andsupport is provided for the suction fan, and properly disposed passagesleading to and from the fan. Although the casing is herein shown as ofcurvilinear configuration, it may have substantially rectangular form.Moreover, the housing may have only two compartments, in which instancethe hoisting apparatus will be independently mounted upon a suitableframe. It is, however, preferable to enclose the hoisting apparatus forthe sake of neatness and cleanliness.

- It is preferable to have the suction apparatus located adjacent theintake end of the exhaust conduit, and said apparatus is therer foremounted upon the stationary casing, although the same may be located ata distant point, with a conduit leading from the canopy connectedtherewith, or a conduit may lead fromthe lower side of the upper sectionupwardly therethrough and'be suitably connected with a separatelymounted suction apparatus.

As thus constructed the upper section provides a closed casing having ahousing extending upwardly from the top, said housing being verticallypartitioned to provide at least two chambers, one opening at the bottomof the casing and the other at the top of the housing, the partitionhaving an opening therein for establishing communication between one ofthe chambers, and a suction fan within the other chamber placed inopposition to the opening. By this arrangement the fan is adapted toexhaust vapor from a point below the upper section, and deliver itthrough the upper opening of the housing.

The hood or movable section telescopically surrounds the stationarysection and is adapted to be raised and lowered relative to that sectionand the machine.

For this purpose the upper section has a grooved roller 10 mounted ateach corner, in a bracket which extends outwardly therefrom at an angleof Each bracket is composed of two strap irons 10 each attached at oneend to an adjacent side, their outer ends disposed in spaced parallelrelation at the above mentioned angle with the sides to which they areattached. Each iron is slotted lengthwise as at 11 and traversing thealigned slots is a bolt 12 upon which the roller is rotatably mounted.The bolt has a nut by which it is adapted to be clamped. In this mannerthe rollers may be horizontally adjusted relative to the tracks and setin adjusted position. Thus the hood is centered and guided relative tothe stationary member.

The downward movement of the hood is limited, and for this purposecooperative abutments are provided having the form of horizontalmarginal flanges, the flange of the lower casing resting upon the flangeof the upper and sealingly engaged therewith This stop engagementnormally takes place when the lower edge of the hood is in operativerelation with the machine.

The hood may be of any configuration but is preferably rectangular, isconstructed of sheet metal, and comprises hollow walled frame-like sidessuitably connected together by hollow corner track carrying sections,which latter are suitably secured to the sides to form the substantiallyrectangular hood structure.

The hood is open at top and bottom and its sides are built up in theform of frames, providing window openings in which are secured windowpanes, whereby that portionv of the machine covered or enclosed by thehood may be viewed.

Each frame-like side is of hollow construction and is formed from hollowsections each comprising two plates suitably bent and sehook-likeflanges 32. A second piece is bent thrice at right angles to providevertical and horizontal inner walls respectively 33,34 and termmalextensions 35 which are engaged between the hook-like bent over portions32 of the outer sheet, and the parts secured by pressing together. Ahorizontal abutment flange 38 is thus provided for engagement with theflange 3 of the upper section, and a vertical flange 40 against which atthe inner side the glass is secured. The sheets of which the-bottomrails or sections are constructed are secured together in a mannersubstantially the same as that of the upper rails, but these providecoplanar longitudinal parallel flanges 41 respectively at the upper andlower sides, (see Fig. 2), the outer plate being bent only to providehook-like flanges. The glass 43 is sealingly secured to the innerflanges by suitable metallic strips 45, the strips. being secured in anypreferred manner.

The hood is translatably guided upon the upper section and for thispurpose guides or tracks are provided upon the hood, engageable by therollers mounted upon the stationary section, the guides being formed asintegral parts of the corner pieces which are attached to and hold thesides of the hood together.

The corner sections as units are of hollow construction, (see Fig. 4),and each provides an inwardly extending vertically disposed track formedby similarly bending two metal sheets in opposite directions, andcapping the inner end to form a guide wheel engaging edge or track. Thesections extend upwardly beyond the walls of the hood so that they areengaged with the rollers at all times. A guide or track is dis posed ateach corner at an angle of 45 with the sides of the hood, which anglecorresponds to that of the rollers, that engage with the guide. Thetracks extend the entire height of the hood and provide means inconjunction with the rollers whereby the hood is at all times positivelyguided and held in proper relation to the stationary section.

Each combined corner and track section as a unit, hereinafter calledcorner section, comprises two right angularly disposed hollow sideplates or sides having their adjacent vertical edges connected by theterminals of the plates or track members, and the plates and trackmembers are connected together by a corner cap piece. The plates formingeach corner section at their vertical 1 provide a side as an abutment51, and second,

free edges are shouldered and flanged for abutting overlappingengagement with corresponding adjacently disposed vertical end walls orcorners of the hollow sides of the hood, as suitably attached thereto toform the substantially hollow walled insulating canopy.

Each side of the corner section is formed from a single sheet bent uponitself to provide a laminated attaching flange 50 and further bent twiceat right angles first to an inner wall 52 spaced from and parallel withthe outer wall 53. The terminal longitudinal edge of the outer wall ofeach side is sealingly connected with the sheet metal track member andcorner cap piece, the structure and manner of connecting being asfollows:

The cap piece is formed by bending a vertical sheet centrally .andlongitudinally at right angles and each side thus formed is bent uponitself to provide a hook-like attachment flange 54, which receives onelongitudinal terminal edge of a corresponding hook-like flange 55 of thetrack member, and has its face engaged withthat of the outer wall 53 ofthe plate of the corner section.

The track member is formed of two sheets, each bent outwardly at anangle of 45, and then at an angle of 90, and finally bent upon itself toform the hook-like flange 55 engaged, as previously mentioned, with theflange of the cap piece and with the terminal of the outer wall of thecorner section.

After being engaged and interlocked in the manner described the arts arepressed together. The track thus ormed comprises two thicknesses ofmetal laid face to face, and a cappiece 56 formed by bending to rovide arounded roller engaging edge is attached by bolts as shown. The terminalvertical edge of each inner wall of each side of each corner sectionabuts a track member at the 45 bend as at 57, and may be soldered atthis point if desired. By this construction a corner section is providedhaving hollow side walls terminating in shoulders for engaging the endwalls of the hood, and flanges extending substantially coplanar with theouter faces of the corresponding sides, and also having a track memberextending inwardly therefrom as an integral part, portions 58 of thetrack forming end walls parallel with the shoulders 51, the trackmembers in conjunction with the cap pieces functioning to sealinglysecure all the members together at the corner.

As before mentioned, the hood is adapted to be raised and lowered andfor this purpose the hoisting apparatus is mounted in the housing 14,preferably in the chamber 25, and in the following manner, (see Figs.

7 and 1), and is designed to raise the hood evenly.

by bolts, are two irons, the lower 62 applied directly against the topof the housing, and the upper 63 as a bracket resting thereupon. Thevertically disposed arm of the bracket is provided adjacent itsextremity with an opening as a bearing in which is rotatably mounted ashaft 64 having at its outer end a pulley adapted for rotation by anendless chain 65. The opposite end of this shaft is rotatably mounted ina bearing bracket dependingly pivoted by a bolt 66 passing through thestrap arms, the bearing being thus enclosed within the chamber 25. Thisshaft has a worm 67 in mesh with a corresponding worm wheel mounted upona shaft 68, the second shaft projecting at each side beyond the bearingand each end thereof having keyed thereto a grooved pulley 69 havinglink shaped teeth in the groove adapted to positively engage the linksof the chain 70 to drive the same.

. The intermediate portion of the chain passes over each pulley and overcorrespond- 'ing pulleys 72 mounted in suitable brackets attached to thesides of the upper section,

these pulleys being substantially vertically (See Fig. 1.) Each belowthe pulleys 69. outer end of the chain is pivotally connected at theintermediate point of a singletree orlever 73. A certain amount of slackis provided in the chain which loops downwardly as at 7 5 at oppositesides of each pulley, and extends across from one pulley to the other asshown in Figs. 1 and 7, and this slack is increased as the hood israised.

Attached to each singletree or compensating lever are two wires orcables, one attached adjacent each end. There are four of these cables,one attached at each corner of the hood. The singletrees are disposed atopposite ends of the upper section both adjacent the same side walls,and one adjacent each end wall. Attached to and extend-.

'ing from the extremity of one arm of each lever is a cable 7 6 passingover a pulley 77 mounted upon the vertical inner side wall of thesection downwardly and attached at its lower end to a corner cross brace78, of which there are four, one at each corner and located adjacent thebottom of the hood at the inner side. The cable 79 attached at theopposite end of the lever passes horizontally toand around ahorizontally disposed pulley 80, thence across to the opposite side ofthe section to a vertically disposed pulley 81, and downwardly to acorresponding cross brace. The hood section is thus suspended, and theends of pairs of cables are attached at opposite sides of thecompensating lever pivoted to a terminal link of the hoisting'chain.

ill

Whenever the attendant rotates the shaft by means of the chain, thesingletrees are drawn in an appropriate direction and the hood evenlyraised, the hoisting apparatus being so geared that the relatively heavyhood may be raised or lowered with little eflort.

Each bracket which supports a roller has attached thereto a verticallyextending bolt 82 pivoted between the plates by means of a cross pin 83extending through both. The upper end of each of these bolts is threadedand engaged with the threads are the corresponding threads of a cap 84having an eye in the form of an axial extension terminally perforated.Through each perforation is engaged and fastened the lower end of a wire85 which extends upwardly and is suitably attached to the ceiling orother supporting device, not shown, thus properly stationarilysuspending the upper section. The threaded engagement of the caps withthe bolts provides for levelling adjustment which is accomplished byappropriately rotating the ca s. a

The top of the stationary section is closed by hollow covers 90 formedof two plates of sheet metal, the upper having marginal hook-likeflanges with which are engaged terminal flanges of the lower member,these covers being formed substantially in the manner of the sectionsforming the sides of the hood. The covers prevent collection of dust orother foreign matter and may be conveniently removed when adjustment orrepair of the housed mechanism is desired.

Having described my invention, ll claim:

1. A ventilation canopy for collecting and disposing of vapors or thelike emitted from machines, of sectional casing structure comprisin astationary top adapted to be suspended above the machine and having avent duct therethrough, and side wall sections about said top combinedand slidable as a unit upon said top adapting the same to be dependedtherefrom and with the top provide a closure over the machine to bevented.

2. A ventilator canopy 'for collecting and conveyin escaping vapors orthe like emitted rom machines, comprising a top section horizontalldisposed and sustained at an elevation above the machine to be vented,side walls disposed about said top section connected as a unit andhaving a sliding bearing with said top section, adapting the same to bedependingly sustained therefrom to provide a closure for the machine tobe vented, and elevator means for moving said side walls to elevatedpositions.

3. A ventilator canopy for collecting and conveying escaping vapors orthe like emitted from machines, comprising a double walled top sectionhorizontally disposed and sustained at an elevation above the machine tobe vented, and having a vent passage therethrough, side walls disposedabout said top section having a sliding bearing with said top section,adapting the same to be dependingly sustained therefrom to provide acasing closure for the machine to be vented,

at the corners thereof adapting the side walls to be dependinglysustained from the top section and therewith form a casin closure forthe machine to be vented, and elevator means, carried by said topsection with said side walls at the respective corners of said top andside wall unit for moving said side walls as a unit to elevatedpositions.

5. A ventilator canopy for collecting and conveying escaping vapors orthe like emitted from machines, comprising a top section horizontallydisposed and sustained at an elevation above the machine to be vented,

and having a vent opening therethrough, 7

side walls disposed about said top section and having a sliding bearingtherewith for lowering and elevating the walls, said walls each having alateral flange projecting inwardly from the upper edge thereof forengagement with the top section when in this depended position, toprovide a closure joint, and elevator means for moving said side wallsto elevated position.

6. A device for collecting and "disposing of gaseous products generatedby and rising from a machine, comprising a stationary casing sectionadapted to be suspended over the machine, having an outwardly extendingmarginal flange at its lower perimeter and having a suction passage forreceiving prod note from below and discharging the same, a hood sectionenga ed about said stationary section and guided thereon, adapted toengage the machine when in lowermost position and having a marginalflange inwardly extended from the upper end of the hood section forcooperation with the marginal flange of said stationary section, andhoisting means upon the stationary section having cables extending tothe corners of the hood adjacent its lower end for raising the same togive access to the machine.

In witness whereof, I hereunto subscribe

